CVE-2026-82725 (GCVE-0-2026-82725)
Vulnerability from cvelistv5 – Published: 2026-08-31 03:09 – Updated: 2026-08-31 15:49
VLAI
EPSS
VEX
Title
AshPhoenix FilterForm allows filtering across non-public relationships, disclosing private related data
Summary
Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_phoenix lets an attacker who controls filter form parameters filter across relationships the resource author marked non-public, turning the returned rows into a boolean oracle over private related data.
AshPhoenix.FilterForm resolved every relationship hop in the user-supplied path with Ash.Resource.Info.related/2, which traverses private relationships, and only checked the terminal field for publicity. parse_path_and_field/2 also rewrote a field naming a relationship into an extra path segment, so field=some_private_rel was accepted too. Both path and field come straight from form params, and the resulting ref went to Ash.Query.do_filter/2 without the public-only enforcement of Ash.Filter.parse_input/2. The fix resolves each hop with Ash.Resource.Info.public_relationship/2, rejecting the first non-public hop, and requires the terminal field to be public.
This issue affects ash_phoenix: from 0.6.0-rc.1 before 2.3.25.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 15:49 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_phoenix/securi… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-82725.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-82725 | related |
| https://github.com/ash-project/ash_phoenix/commit… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash_phoenix |
Affected:
0.6.0-rc.1 , < 2.3.25
(semver)
cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:* |
||
| ash-project | ash_phoenix |
Affected:
06875682999938f607c970e71b6a80af90e18b3d , < a3691a3cb0947e8f2dc2c3cbff138a3e6197a15b
(git)
cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:* |
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"criteria": "cpe:2.3:a:ash-project:ash_phoenix:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.3.25",
"versionStartIncluding": "0.6.0-rc.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "reporter",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Zach Daniel / Ash Project"
},
{
"lang": "en",
"type": "coordinator",
"value": "Jonatan M\u00e4nnchen / EEF"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eAuthorization Bypass Through User-Controlled Key vulnerability in ash-project ash_phoenix lets an attacker who controls filter form parameters filter across relationships the resource author marked non-public, turning the returned rows into a boolean oracle over private related data.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003eAshPhoenix.FilterForm\u003c/code\u003e resolved every relationship hop in the user-supplied \u003ccode\u003epath\u003c/code\u003e with \u003ccode\u003eAsh.Resource.Info.related/2\u003c/code\u003e, which traverses private relationships, and only checked the terminal field for publicity. \u003ccode\u003eparse_path_and_field/2\u003c/code\u003e also rewrote a \u003ccode\u003efield\u003c/code\u003e naming a relationship into an extra path segment, so \u003ccode\u003efield=some_private_rel\u003c/code\u003e was accepted too. Both \u003ccode\u003epath\u003c/code\u003e and \u003ccode\u003efield\u003c/code\u003e come straight from form params, and the resulting ref went to \u003ccode\u003eAsh.Query.do_filter/2\u003c/code\u003e without the public-only enforcement of \u003ccode\u003eAsh.Filter.parse_input/2\u003c/code\u003e. The fix resolves each hop with \u003ccode\u003eAsh.Resource.Info.public_relationship/2\u003c/code\u003e, rejecting the first non-public hop, and requires the terminal field to be public.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_phoenix: from 0.6.0-rc.1 before 2.3.25.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_phoenix lets an attacker who controls filter form parameters filter across relationships the resource author marked non-public, turning the returned rows into a boolean oracle over private related data.\n\n`AshPhoenix.FilterForm` resolved every relationship hop in the user-supplied `path` with `Ash.Resource.Info.related/2`, which traverses private relationships, and only checked the terminal field for publicity. `parse_path_and_field/2` also rewrote a `field` naming a relationship into an extra path segment, so `field=some_private_rel` was accepted too. Both `path` and `field` come straight from form params, and the resulting ref went to `Ash.Query.do_filter/2` without the public-only enforcement of `Ash.Filter.parse_input/2`. The fix resolves each hop with `Ash.Resource.Info.public_relationship/2`, rejecting the first non-public hop, and requires the terminal field to be public.\n\nThis issue affects ash_phoenix: from 0.6.0-rc.1 before 2.3.25."
}
],
"value": "Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash_phoenix lets an attacker who controls filter form parameters filter across relationships the resource author marked non-public, turning the returned rows into a boolean oracle over private related data.\n\nAshPhoenix.FilterForm resolved every relationship hop in the user-supplied path with Ash.Resource.Info.related/2, which traverses private relationships, and only checked the terminal field for publicity. parse_path_and_field/2 also rewrote a field naming a relationship into an extra path segment, so field=some_private_rel was accepted too. Both path and field come straight from form params, and the resulting ref went to Ash.Query.do_filter/2 without the public-only enforcement of Ash.Filter.parse_input/2. The fix resolves each hop with Ash.Resource.Info.public_relationship/2, rejecting the first non-public hop, and requires the terminal field to be public.\n\nThis issue affects ash_phoenix: from 0.6.0-rc.1 before 2.3.25."
}
],
"impacts": [
{
"capecId": "CAPEC-77",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-77 Manipulating User-Controlled Variables"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 2.3,
"baseSeverity": "LOW",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "CWE-639 Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T03:09:25.850Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/ash-project/ash_phoenix/security/advisories/GHSA-7xhg-xphm-f458"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-82725.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-82725"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ash-project/ash_phoenix/commit/a3691a3cb0947e8f2dc2c3cbff138a3e6197a15b"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "AshPhoenix FilterForm allows filtering across non-public relationships, disclosing private related data"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-82725",
"datePublished": "2026-08-31T03:09:25.850Z",
"dateReserved": "2026-08-31T00:59:08.960Z",
"dateUpdated": "2026-08-31T15:49:46.161Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.